Weil McLain 640-000-090 NPT Adapter Kit for WMnt 155C Combi Boiler

The Weil McLain 640-000-090 is a service replacement adapter kit designed specifically for the AquaBalance WMnt 155C combination boiler system. This kit provides NPT (National Pipe Thread) adapters that enable proper connection of piping components within the boiler's internal plumbing system.

Key Features:

• Factory replacement part for Weil McLain AquaBalance WMnt 155C combi boilers
• Includes two NPT thread adapters for reliable pipe connections
• Designed for wall-mount combination heating and domestic hot water systems
• Ensures proper sealing and integration with boiler internal components
• Genuine OEM part manufactured to Weil McLain quality standards

This adapter kit is essential for service work, repairs, or component replacement on the WMnt 155C model. Professional installation by a qualified heating technician is required to ensure proper boiler operation and maintain warranty coverage.